Search found 59 matches

by MHTSOS
Wed Aug 17, 2022 9:56 am
Forum: You and your build
Topic: Vitara 1.6 8v
Replies: 9
Views: 269

Re: Vitara 1.6 8v

Ideally you can make a peak n' hold driver with LM1949 but it can also work with a series resistor to bring the total resistance around 12 to 14 ohms. In that case you will have to calculate the injector dead times from scratch. Best solution would be to install a high-z injector that fits in this m...
by MHTSOS
Tue Aug 16, 2022 5:37 am
Forum: You and your build
Topic: Vitara 1.6 8v
Replies: 9
Views: 269

Re: Vitara 1.6 8v

Easiest way is adding a series resistor.

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by MHTSOS
Fri Jul 01, 2022 2:40 pm
Forum: Tuning Support: Making it Run
Topic: Boost control tuning
Replies: 9
Views: 2641

Re: Boost control tuning

This explanation of PID has to be in the Wiki if it's not already there.

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by MHTSOS
Tue Jun 21, 2022 2:21 pm
Forum: Tuning Support: Making it Run
Topic: Greetings smart people
Replies: 28
Views: 1886

Re: Greetings smart people

What kind of SD card is it and how is it formated?

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by MHTSOS
Tue May 24, 2022 2:26 pm
Forum: Universal Boards
Topic: m102 2.3 8v mercedes E190 PROTEUS
Replies: 6
Views: 875

Re: m102 2.3 8v mercedes E190 PROTEUS

This sounds like 2 squirts per cycle = batch injection.
4 squirts per cycle = simultaneous injection
and 1 squirt per cycle would be sequential injection.
How are your injectors wired in?

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by MHTSOS
Mon May 02, 2022 12:20 pm
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

Where do you connect pin 1 of your main relay?

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by MHTSOS
Mon May 02, 2022 12:08 pm
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

Do you have 12V at pin #1 and #5 of MRE?

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by MHTSOS
Mon May 02, 2022 10:17 am
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

Pins are correct. Measuring with a multimeter do you have 12V at pin 10 of the main relay when you turn the key on the ignition?

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by MHTSOS
Mon May 02, 2022 5:22 am
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

Can you make a diagram to show us how you have connected your MRE? What pin of MRE goes to what pin of engine harness and then upload your tune to Rusefi online to verify it's setup correctly. The Peugeot 106 uses a very similar main relay and the MRE drives it without a problem. Στάλθηκε από το VOG...
by MHTSOS
Sat Apr 30, 2022 10:17 am
Forum: Dev: Hardware
Topic: F103 dual channel wideband controller + EGT + 2 x AUX In + 2 Aux out
Replies: 25
Views: 3238

Re: F103 dual channel wideband controller + EGT + 2 x AUX In + 2 Aux out

AFAIK you are not allowed to use copper wire to extend thermocouple cables since every wire connection will act as a separate thermocouple junction and alter the reading. Ideally the thermocouple should be connected to a suitable connector right next to the IC so that it's cold junction compensation...
by MHTSOS
Thu Apr 21, 2022 5:39 am
Forum: Dev: Hardware
Topic: microRusEFI
Replies: 386
Views: 245376

Re: microRusEFI

Different rdson resistance. Pick the lowest one since it makes less heat while on.

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by MHTSOS
Tue Apr 19, 2022 2:29 pm
Forum: Dev: Hardware
Topic: Wideband Controller: Fully Custom, no ASIC!
Replies: 130
Views: 51306

Re: Wideband Controller: Fully Custom, no ASIC!

TP6004. It's a clone of MCP6004. Are you ordering from lcsc?

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by MHTSOS
Mon Mar 07, 2022 10:03 pm
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

The relays will be wired as main relay on pin 4 and fuel pump relay on pin 23.
Pins 7 and 10 are the security code keypad and the diagnostic connector and I don't think you'll use either of these features.

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by MHTSOS
Mon Mar 07, 2022 9:57 pm
Forum: You and your build
Topic: Success Story Fiat 128 / Zastava 101 1500cc on MRE
Replies: 37
Views: 4168

Re: Suggestion for starting 1st project

Both ECUs are able to run this engine as it's fairly simple. Your main issue will be ignition since your coils are "dumb" and the transistors that drive them are inside the stock ecu. Neither MRE nor Proteus have transistors to drive dumb coils directly. You will either have to use an exte...
by MHTSOS
Sat Feb 26, 2022 7:26 am
Forum: You and your build
Topic: Subaru SVX with custom RusEFI
Replies: 36
Views: 9159

Re: Subaru SVX with custom RusEFI

Yep, that's tight in space. If you place it where the battery is now how are you going to route the downpipe and the rest of the exhaust? Unless you go full mad max and just put a straight pipe through a hole in the fender. In that case you can also mount it low on either side of the radiator and us...
by MHTSOS
Fri Feb 25, 2022 3:43 pm
Forum: You and your build
Topic: Subaru SVX with custom RusEFI
Replies: 36
Views: 9159

Re: Subaru SVX with custom RusEFI

I guess the pistons are from a EJ22 NA since only 22B had a turbo version of this engine. I don't know much about these particular engines since they were never sold around here. Generally EJ16 and EJ20 NA pistons don't tolerate much boost. People usually use 0.7 bar max but at much higher compressi...
by MHTSOS
Wed Feb 23, 2022 3:23 pm
Forum: You and your build
Topic: Subaru SVX with custom RusEFI
Replies: 36
Views: 9159

Re: Subaru SVX with custom RusEFI

8.4/1 compression ratio calls for big boost. Even 8.8/1 can do 250kpa on a stroker EJ20.

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by MHTSOS
Fri Feb 18, 2022 3:42 pm
Forum: Universal Boards
Topic: microRusEFI issues with AN pins affected by aux reuse
Replies: 29
Views: 4391

Re: microRusEFI issues with AN pins affected by aux reuse

If we cut the DFB lines like Dron_gus suggested is there any drawback if we don't intend to use the 5090 low side switches?

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by MHTSOS
Tue Jan 18, 2022 3:37 pm
Forum: Dev: Hardware
Topic: cheap cylinder pressure sensor option - smart diesel glow plug with pressure sensor
Replies: 76
Views: 41672

Re: cheap cylinder pressure sensor option - smart diesel glow plug with pressure sensor

For when you have no access to the crankshaft, ie a Harley engine.

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by MHTSOS
Thu Nov 18, 2021 3:38 pm
Forum: Dev: Hardware
Topic: BGA in ECU
Replies: 16
Views: 4366

Re: BGA in ECU

Another ECU that drops dead like flies is 64pin Magnetti Marelli in Fiats. BGA cpu and the ECU is bolted on the top of the engine. The only logical reason I see for an OEM to do that is to cut down on cable length for the harness.


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by MHTSOS
Fri Nov 05, 2021 8:16 pm
Forum: User Support
Topic: Soldering tricks & hints
Replies: 52
Views: 31493

Re: Soldering tricks & hints

I agree with everything stated above with just one remark. Amtech flux is amazing but you have to make sure you're buying it from a reputable source. The market is flooded with Chinese clones which are utterly crap. If you buy it from aliexpress you might as well use spit instead of flux. It will ha...
by MHTSOS
Fri Oct 29, 2021 2:37 pm
Forum: You and your build
Topic: W124 E220 Cabriolet M111 Turbo [microRusEFI]
Replies: 11
Views: 4193

Re: W124 E220 Cabriolet M111 Turbo MRE

Do you have or do you have access to an oscilloscope?

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by MHTSOS
Fri Oct 29, 2021 2:34 pm
Forum: You and your build
Topic: 1995? 97? E36 328is
Replies: 5
Views: 1716

Re: 1995? 97? E36 328is

If you tune it without an exhaust won't the VE table change once you install one?

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by MHTSOS
Wed Oct 27, 2021 2:28 pm
Forum: Universal Boards
Topic: Proteus .04 RPM Spiking, Trigger Error?
Replies: 23
Views: 5063

Re: Proteus .04 RPM Spiking, Trigger Error?

The period of a single tooth cam would be over 85ms on low rpms so could this be a case of the dreaded watchdog?

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by MHTSOS
Mon Oct 04, 2021 11:57 am
Forum: Dev: Software
Topic: Suzuki G13B tooth pattern
Replies: 20
Views: 4768

Re: Distributor wiring and tooth pattern

That's 36-2-2-2 and it's already supported. It's the same as Subaru. This will work fine.

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by MHTSOS
Mon Oct 04, 2021 9:52 am
Forum: Dev: Software
Topic: Suzuki G13B tooth pattern
Replies: 20
Views: 4768

Re: Distributor wiring and tooth pattern

This is a 4+1 like Mathew predicted. It will probably need a custom trigger built into the software. It it possible to install a cranck wheel like 36-1 with a generic sensor and not use the signal from the distributor at all? That would be the most reliable solution. A cam wheel with only 4 teeth do...
by MHTSOS
Mon Oct 04, 2021 6:26 am
Forum: Dev: Software
Topic: Suzuki G13B tooth pattern
Replies: 20
Views: 4768

Re: Distributor wiring and tooth pattern

Here is the trigger wheel inside the distributor of G13B
https://www.maxxecu.com/webhelp/trigger_system-suzuki_13b.html
https://forums.linkecu.com/topic/10255-g13b-twincam-trigger-pattern/
Looks like it will need a crank wheel installed to work properly.
by MHTSOS
Mon Oct 04, 2021 6:19 am
Forum: Dev: Software
Topic: Suzuki G13B tooth pattern
Replies: 20
Views: 4768

Re: Distributor wiring and tooth pattern

As far as I know the G13BB has wasted spark ignition with two coils on the valve cover. The G13B had a distributor. Is this engine from a Suzuki Swift GTi or another car? Is it the 100hp version? Does it have 1 cam or dual cams?

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by MHTSOS
Thu Sep 23, 2021 2:27 pm
Forum: Universal Boards
Topic: ETB setup - startup pin state
Replies: 22
Views: 5567

Re: ETB setup - startup pin state

ETB driver ICs are built to switch on and off much slower than any normal MOSFET would in order to minimize EMI and ringing. For that reason when you use them at several kHz they tend to produce a lot of waste heat because they stay for a lot more time in the active region of the MOSFET instead of s...
by MHTSOS
Wed Sep 15, 2021 4:39 pm
Forum: Dev: Hardware
Topic: How to clean used PCB headers
Replies: 18
Views: 4225

Re: How to clean used PCB headers

I've tried detergent for hand washing clothes, baking soda, and hand soap. Basically any detergent will work more or less as long as it's not foaming. Of course you'll have to consider the fact that you have a wife and the possibility of you sleeping outside if she finds out. I don't have that probl...